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EP3360998B1 - Pumpenvorrichtung für ein wasserführendes haushaltsgerät, verfahren zum betrieb einer solchen pumpenvorrichtung und wasserführendes haushaltsgerät - Google Patents

Pumpenvorrichtung für ein wasserführendes haushaltsgerät, verfahren zum betrieb einer solchen pumpenvorrichtung und wasserführendes haushaltsgerät Download PDF

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Publication number
EP3360998B1
EP3360998B1 EP18151784.8A EP18151784A EP3360998B1 EP 3360998 B1 EP3360998 B1 EP 3360998B1 EP 18151784 A EP18151784 A EP 18151784A EP 3360998 B1 EP3360998 B1 EP 3360998B1
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EP
European Patent Office
Prior art keywords
pump chamber
pump
water
chamber
pump device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18151784.8A
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German (de)
English (en)
French (fr)
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EP3360998A1 (de
Inventor
Lutz Ose
Uwe Schaumann
Wolfgang Thimm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Geratebau GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Application filed by EGO Elektro Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Priority to PL18151784T priority Critical patent/PL3360998T3/pl
Publication of EP3360998A1 publication Critical patent/EP3360998A1/de
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/08—Liquid supply or discharge arrangements
    • D06F39/083—Liquid discharge or recirculation arrangements
    • D06F39/085—Arrangements or adaptations of pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4214—Water supply, recirculation or discharge arrangements; Devices therefor
    • A47L15/4225—Arrangements or adaption of recirculation or discharge pumps
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4297—Arrangements for detecting or measuring the condition of the washing water, e.g. turbidity
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/30—Treatment of water, waste water, or sewage by irradiation
    • C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/68—Treatment of water, waste water, or sewage by addition of specified substances, e.g. trace elements, for ameliorating potable water
    • C02F1/685—Devices for dosing the additives
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
    • C02F5/08—Treatment of water with complexing chemicals or other solubilising agents for softening, scale prevention or scale removal, e.g. adding sequestering agents
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F17/00—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid
    • D06F17/02—Washing machines having receptacles, stationary for washing purposes, wherein the washing action is effected solely by circulation or agitation of the washing liquid by pumps
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F34/00—Details of control systems for washing machines, washer-dryers or laundry dryers
    • D06F34/14—Arrangements for detecting or measuring specific parameters
    • D06F34/22—Condition of the washing liquid, e.g. turbidity
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/02—Pumping installations or systems having reservoirs
    • F04B23/025—Pumping installations or systems having reservoirs the pump being located directly adjacent the reservoir
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B23/00—Pumping installations or systems
    • F04B23/04—Combinations of two or more pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/0009—Special features
    • F04B43/0027—Special features without valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/08—Machines, pumps, or pumping installations having flexible working members having tubular flexible members
    • F04B43/082—Machines, pumps, or pumping installations having flexible working members having tubular flexible members the tubular flexible member being pressed against a wall by a number of elements, each having an alternating movement in a direction perpendicular to the axes of the tubular member and each having its own driving mechanism
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B43/00—Machines, pumps, or pumping installations having flexible working members
    • F04B43/12—Machines, pumps, or pumping installations having flexible working members having peristaltic action
    • F04B43/1215—Machines, pumps, or pumping installations having flexible working members having peristaltic action having no backing plate (deforming of the tube only by rollers)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/08—Cooling; Heating; Preventing freezing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4236—Arrangements to sterilize or disinfect dishes or washing liquids
    • A47L15/4242—Arrangements to sterilize or disinfect dishes or washing liquids by using ultraviolet generators
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/07—Status of hydraulic components, e.g. open/close status of water inlet/outlet valves, operating position of water diverters
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/10—Water cloudiness or dirtiness, e.g. turbidity, foaming or level of bacteria
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L2401/00—Automatic detection in controlling methods of washing or rinsing machines for crockery or tableware, e.g. information provided by sensors entered into controlling devices
    • A47L2401/11—Water hardness, acidity or basicity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/002—Grey water, e.g. from clothes washers, showers or dishwashers
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2303/00—Specific treatment goals
    • C02F2303/04—Disinfection
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F2103/00—Parameters monitored or detected for the control of domestic laundry washing machines, washer-dryers or laundry dryers
    • D06F2103/20—Washing liquid condition, e.g. turbidity

Definitions

  • the invention relates to a pump device for a water-bearing household appliance such as a washing machine or a dishwasher, a corresponding water-bearing household appliance and a method for operating such a pump device.
  • a washing machine is known with a pump in it that works with two operating modes or different directions of rotation. One serves to convey or pump out water. The other, opposite, serves only to swirl around the washing suds in order to be able to better dissolve a cleaning agent in it.
  • the invention is based on the object of creating a pump device as mentioned at the outset, a household appliance provided with it and a method for operating such a pump device, with which problems of the prior art can be solved and in particular it is possible to create a pump device that can be used and used in a variety of ways create or enable the use of additives and/or analysis substances during the operation of such a water-bearing household appliance, with the aim above all of achieving precise dosing of the additives and/or analysis substances.
  • a pump device having the features of claim 1, a method having the features of claim 9 and a corresponding water-bearing household appliance having the features of claim 12.
  • Advantageous and preferred embodiments of the invention are the subject matter of the other claims and are described in more detail below explained. Some of the features are only described for the pump device, only for the method or only for the water-bearing household appliance. However, independently of this, they should be able to apply both to the pump device itself and to a corresponding method and a corresponding household appliance independently and independently of one another.
  • the wording of the claims is made part of the content of the description by express reference.
  • the pump device is provided for a water-conducting device or household appliance such as a washing machine or a dishwasher, with the pump device advantageously being arranged in the household appliance, in particular corresponding to a conventional pump device for such a household appliance.
  • the pump device can also be used to advantage in other water-carrying devices.
  • the pump device has at least one pump chamber, which has at least two inlets, wherein advantageously at least one inlet of the pump chamber can also have the function of an outlet.
  • a single inlet is advantageously provided, which only serves as an inlet, while there can also be a number of inlets, which can also be outlets.
  • An inlet is essentially a connection from the pump chamber to the outside, regardless of the main direction of flow.
  • At least one actuator is provided on or in the pump chamber in order to be able to pump liquid with the pump device in at least one direction, preferably in both directions. So this can be into the pump chamber to an inlet, possibly then to a further inlet with the function as an outlet. Another direction is back out to the inlet. Yet another direction is from another inlet into the pump chamber.
  • At least one sensor is provided on or in the pump chamber in order to be able to determine the ingredients and/or properties of the liquid in the pump chamber.
  • a sensor can in principle be designed in a variety of ways, in particular it can be designed to be able to detect specific ingredients, preferably chemical ingredients or specific contaminants, for example biological or other. It can advantageously be a plurality of sensors, for example a so-called sensor array. Further electrical properties of the liquid in the pump chamber can also be determined.
  • the pump device has a storage chamber which is connected to an inlet of the pump chamber.
  • the storage chamber can contain additives and/or analysis substances for the liquid, as mentioned above.
  • Exactly one inlet of the pump chamber is advantageously provided for each storage chamber, so that if several storage chambers are desired or required, several corresponding inlets are also to be provided in the pump chamber. In this way, exactly one single inlet is connected to exactly one single storage chamber.
  • a pump device is created, the basic structure of which can be expanded on the one hand and which can be used in a variety of ways on the other hand and can be made small and compact.
  • This pump device can be used in a variety of water-carrying devices and specifically adapted.
  • a type of modular pump device can thus be constructed with various basic components.
  • properties of the liquid that is currently being used as the working liquid in the household appliance such as washing water or rinsing water, can be determined.
  • An examination or determination can take place directly, advantageously by means of the aforementioned sensor. Further examination options result from the fact that an analysis substance is added to the pump chamber from at least one storage chamber by means of the actuator or in some other way or is mixed into the liquid or working liquid present there.
  • contamination in the form of organic contamination or bacterial contamination of the liquid in the household appliance can be detected with certain markers, for which the sensors are responsible after they have been made visible by the additives and/or analysis substances. Since this is known in principle, it does not need to be explained in more detail.
  • a corresponding device, which works according to this principle, is offered by the company Microlan in the Netherlands under the name Bactcontrol.
  • Additives from a storage chamber can also be mixed into liquid, which have been brought into the pump chamber by the at least one actuator for this purpose, in order to be mixed there first of all with the small volume of liquid. This mixed liquid is then brought back into the device from the pump chamber to the inlet by means of the at least one actuator, so that the additive can act there as intended.
  • the pump chamber is designed to be elastic, with the at least one actuator advantageously being arranged on the outside of the pump chamber.
  • a pumping process takes place here by changing the shape of the pump chamber, in particular by pressing on the pump chamber in a surface area that corresponds to the actuator, in particular is somewhat larger. This results in a corresponding constriction or reduction in the cross section of the pump chamber.
  • several such actuators are arranged on the pump chamber, in particular next to one another or one after the other in one direction, a pumping process can take place. This is also known as what is known as a peristaltic pump. This allows very small pump devices to be built, i.e. when the focus is on size and less on maximum pump volume or maximum accuracy. Another advantage is that the mechanical effort is lower and the reliability is higher, since no additional motors or drives are required as for piston pumps or rotor pumps.
  • actuators are arranged on the outside of the pump chamber. There are preferably three to six actuators or even up to ten actuators. If the pump chamber is advantageously relatively flat and elongated, the actuators can be arranged on the opposite flat sides, advantageously opposite one another. The cross section of the pump chamber located between them can be very effectively reduced or narrowed by the simultaneous actuation of two opposite actuators. It is particularly advantageous to use a plurality of actuators, in particular up to ten actuators, on one or each side of the pump chamber.
  • those actuators which are arranged closest to the inlets as their closure. They should therefore be arranged very close to the inlets on the pump chamber and be designed to be able to narrow the cross section of the pump chamber to such an extent that at least one of the inlets is just closed, advantageously all inlets.
  • separate valves can also be provided.
  • strip-shaped actuators are used as actuators, which should in particular be arranged parallel to one another. They can have a length that is two to eight times their width. Their longitudinal extent is advantageously in a direction perpendicular to a direction of the pump chamber from one inlet to another inlet or perpendicular to the pumping direction.
  • actuators are dielectric, electroactive polymers on the outside of the elastic pump chamber. When a current is applied, they can contract or expand, thereby narrowing or reducing or expanding the cross-section of the pump chamber.
  • electroactive polymers are generally known from actuators and sensors, as well as their application and control.
  • the pump chamber itself can advantageously be a flat silicone tube for very good and permanent flexibility as well as a certain heat resistance.
  • the actuators can be attached directly to the hose by gluing or the like, alternatively by mechanical attachment such as clipping or the like. to be upset.
  • An electroactive polymer material itself can also consist of silicone foil.
  • ELASTOSIL ® Film silicone film is a completely new development from WACKER in Germany. Such a wafer-thin, high-precision film made of cross-linked silicone rubber is available in various thicknesses from 20 ⁇ m to 400 ⁇ m as roll goods. It is manufactured under clean room conditions and completely without solvents.
  • ELASTOSIL ® silicone film is ideally suited as a dielectric precision layer in innovative and future-oriented electronic applications that use so-called EAP (electroactive polymers), for example as actuators, generators and intelligent sensors.
  • the pump device can also have heating means, in particular ohmic heating means or resistance heaters.
  • heating means are advantageously arranged on an outside of the pump chamber, in particular attached thereto. For example, they can be fastened alternately with the aforementioned actuators on an outside of the pump chamber. Since such heating means are usually relatively rigid and at least not of variable length, it is advantageously provided with an elastic pump chamber that the heating means are pressed against the pump chamber, similar to the option described above for the actuators. It is also possible to use flexible heating means or heating elements made of textile fabrics with braided heating conductors. These can continue to be present even when the pump chamber is moving and have a good heating effect. Carbon nanotube layers on the pump chamber as heating conductors are also conceivable. Corresponding heaters are offered under the name carbo-E-therm by the company Future Carbon.
  • the pump device has a UV emitter, in particular a UV LED.
  • Liquid in the pump chamber can thus be treated, for example microorganisms can be killed.
  • a UV emitter possible to perform some analyzes better, for example when a specific UV marker has been added as an analyte to liquid in the pump chamber. In this way, these microorganisms can be made visible after being marked with the UV lamp.
  • at least one corresponding UV detector can be provided, which then precisely detects the reflected or visible UV radiation.
  • UV emitters and/or UV detectors can either be arranged directly in the pump chamber, ie within it. Then a little more effort is required with regard to their electrical connections and sealing. Alternatively, they can be arranged outside of the pump chamber and radiate into the pump chamber or receive light from the pump chamber through correspondingly translucent areas or cutouts. This is possible with translucent silicone hoses of the type mentioned at the outset. In general, a number of completely different light sources or light sources with varying wavelengths can also be provided in order to be able to carry out different examinations.
  • An inlet of the pump device or the pump chamber is advantageously connected to a treatment chamber of a water-conducting device or household appliance according to the invention.
  • a height difference can be provided between the treatment space or a water outlet there and the inlet or the pump chamber, so that the water or the liquid runs automatically at least in one direction.
  • the pump device is not provided below the treatment room or a sump of the treatment room, so that there is always the possibility at any time during operation of the device to let in liquid from the treatment room into the pump device or to pump it without sucking in air.
  • the pump device can be arranged above it, so that water pressure in the treatment room or at the sump does not automatically force water into the pump device. Then a return of the liquid can be correspondingly simple.
  • venting of the pump chamber can be provided, in particular by means of an actuatable valve.
  • an inlet of the pump chamber can also be connected to the treatment room, so that liquid from the pump chamber does not have to take the same route back through the inlet into the treatment room, but rather gets back into the treatment room by being circulated by pumps. In this way it is also possible to avoid water standing in a line between the treatment room and the inlet of the pump chamber for too long, which in turn would be negative in many cases.
  • a household appliance in yet another embodiment, it can have at least two pump devices. In principle, these can be of the same design, but they are advantageously of identical design. This saves effort for different variants. This can be possible, especially for multiple analysis purposes.
  • a storage chamber which is connected to the pump chamber via an inlet
  • the different analysis substances mentioned above can be provided.
  • additives for a process can also be contained in the water-bearing household appliance, for example intensive cleaners, bleaches, fabric softeners, descalers or the like.
  • Heating the liquid in the pump chamber can be used to analyze it, in particular to accelerate certain chemical processes for the analysis.
  • encapsulated substances from, for example, the aforementioned additives can also be thermally dissolved out or released. This detachment or release can be assisted by applying a certain pressure during the pumping movement, in particular when it comes to pumps based on the peristaltic principle.
  • a volume of the pump chamber can be relatively small, for example a maximum of 1 cm 3 to 5 cm 3 or 10 cm 3 .
  • the reservoirs can be larger, for example 5 cm 3 to 500 cm 3 .
  • the water-bearing household appliance It is therefore possible during operation of the water-bearing household appliance to pump liquid or water from the water-bearing household appliance into the pump chamber.
  • the liquid is analyzed, for example according to one of the options mentioned above.
  • Various analysis substances and/or marker substances from a storage chamber that is connected to the pump chamber can be used for this purpose.
  • the liquid or water is pumped back into the treatment room, where it is mixed again or reused.
  • the liquid brought into the pump chamber from the treatment chamber contains an additive from one of the connected pantries is added by means of the actuator.
  • the liquid is then pumped back into the treatment chamber of the household appliance or, in the case of a circulatory structure, pumped further, so that the properties of the liquid in the treatment chamber are less important here, but rather, for example, an aforementioned additive such as descaler, intensive cleaner or the like. is added. In this way, a reasonably precise dosing can take place.
  • a washing machine 11 is shown in a highly schematic manner as a water-bearing household appliance according to the invention, which has a drum 12 as the treatment chamber.
  • a dishwasher or some other water-bearing household appliance with at least one treatment chamber corresponding to the drum 12 could also be provided.
  • a pump device 14 When arranging the 1 a pump device 14 according to the invention is provided according to a first embodiment of the invention.
  • the pump device 14 has an elongate pump chamber 16 which, at one end on the left, is connected to the drum 12 via a first inlet 17 to carry water.
  • a second inlet 18 is provided on the right or at the other end of the pump chamber 16 , via which it is connected to a storage chamber 20 .
  • the size of the storage chamber 20 compared to the pump chamber 16 is not shown here to scale, the storage chamber 20 can be significantly larger.
  • a UV LED 24 is provided on the upper side, which radiates into the pump chamber 16 .
  • the pump chamber 16 must be made translucent, at least in the area of the UV LED 24, either through the choice of material for the pump chamber 16 itself or through the use of a translucent window or the like.
  • the UV LED 24 can be used to disinfect the To make pump chamber 16, as has been previously explained. It can advantageously be provided for a marking function with a marker from the storage chamber 20 on various impurities and/or microorganisms in the liquid, for which purpose a detector 26 is then arranged on the pump chamber 16 .
  • This is also arranged in a translucent area of the pump chamber 16, advantageously in such a way that it can identify as well as possible when the UV LED 24 makes certain substances or microorganisms in the liquid in the pump chamber 16 visible.
  • this is known from the prior art and does not need to be explained in more detail here.
  • a sensor 28 is provided in the pump chamber 16 .
  • this sensor 28 can be of any type or have any function. In particular, it can detect certain ingredients in the liquid in the pump chamber 16, so it can also be a more complex sensor, for example a bio-sensor.
  • a heating element 30 is shown at the top of the pump chamber 16 as an exemplary location. In principle, this heating element 30 can be provided at any point, in particular also over a larger area; several heating elements 30 can be provided. As explained above, the heating element 30 serves to heat liquid in the pump chamber 16 in order in particular to enable or accelerate certain reactions or processes.
  • the mentioned functional units of UV-LED 24, detector 26, sensor 28 and heating element 30 are all connected to a controller 32.
  • This controller 32 is also connected to the pump chamber 16 itself in such a way that it can correspondingly control actuators attached thereto for pumping. Furthermore, the controller 32 controls the aforementioned functional units or evaluates them.
  • the pump chamber 16 consists of an elastic material, for example designed as a flat silicone hose or as a flat and flexible rectangular housing.
  • the inlets 17 and 18 exit at opposite ends and are advantageously formed integrally with the pump chamber 16 .
  • a connection to the drum 12 or the pantry 20 can be via plug nipples, clamp nipples or the like. respectively.
  • the detector 26 is arranged opposite the UV LED 24 so that it also has sufficient space for its arrangement between two actuators 22b.
  • the heating means 30 are not shown here, nor is the sensor 28. However, their arrangement can easily be imagined by the person skilled in the art on the basis of the statements made above.
  • An electrical contact to the sensor 28 to the outside can either lead through the wall of the pump chamber 16, in which case such a passage must then be well sealed.
  • an electrical connection can be led out as a thin cable to the inlet 17 or 18 and then go out there at a point that can be sealed more easily, since it can consist of rigid material in particular and does not have to be moved as much as the wall of the pump chamber 16 itself.
  • the far left and far right actuators 22a and 22b serve as a type of closure for inlets 17 and 18 or as a type of valve. Provision should be made for this, possibly by elevations in the form of ribs or the like provided on the inside of the wall of the pump chamber 16, that the cross-sectional narrowing actually goes so far that the pump chamber walls touch. A type of valve function with a closing effect for the inlets 17 and 18 can then be achieved, so that separate valves or other closing devices can be saved. Above all, this enables precise dosing of the pumped liquid or the addition of additives or analysis substances from the storage chamber 20 mentioned at the outset.
  • FIG. 5 1 a further pumping device 114 in a second embodiment according to the invention, having a pumping chamber 116 similar to that of FIG figure 1 to 4 can correspond to a large extent and is therefore not explained in more detail again. It's also a peristaltic pump. However, the pump chamber 116 is designed here in such a way that it runs more or less vertically or its pumping direction is vertical. A water-carrying connection from the drum 112 as an inlet 117 goes to a lower end of the pump chamber 116. At the upper end of the pump chamber 116 there is an inlet 118 to a storage chamber 120 arranged higher or above.
  • FIG. 6 Another third embodiment of an arrangement or pump device 214 according to the invention is shown in 6 suggest that a pump chamber 216 has essentially any pumping direction, here horizontally from a first inlet 217 to a drum 212 through the pump chamber 216 to a second inlet 218. However, this inlet 218 then leads directly back to the drum 212, see above that here the pump device 214 works in circulation, so to speak, or can circulate liquid. This can simplify an examination or treatment of the liquid in the pump chamber 216, in particular its safe and complete return to the drum 212 combined with safe emptying of the pump chamber 216. Such an arrangement can therefore be particularly advantageous if additives are to be used by the pump device 214 are to be placed in the drum 212, for example to support a washing process.
  • the pump chamber 216 here has two storage chambers 220a and 220b which are arranged or connected to the upper side. These are equipped with their own actuators or locking devices or the like. provided, so that from them individually additives can be added to the pump chamber 216, which can then be added to the drum 212 by pumped liquid. Furthermore, it can also be provided that additives for a washing process in the drum 212 are provided in the one storage chamber 220a. Analysis substances for an analysis of the water from the drum 212 can be provided in the other storage chamber 220b. Thus, with such a pump device 214, water or liquid in the drum 212 can be both analyzed and mixed with additives, as required.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Toxicology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
EP18151784.8A 2017-02-09 2018-01-16 Pumpenvorrichtung für ein wasserführendes haushaltsgerät, verfahren zum betrieb einer solchen pumpenvorrichtung und wasserführendes haushaltsgerät Active EP3360998B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL18151784T PL3360998T3 (pl) 2017-02-09 2018-01-16 Urządzenie pompujące do sprzętu gospodarstwa domowego prowadzącego wodę, sposób eksploatacji takiego urządzenia pompującego oraz sprzęt gospodarstwa domowego prowadzący wodę

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017202062.8A DE102017202062C5 (de) 2017-02-09 2017-02-09 Pumpenvorrichtung für ein wasserführendes Haushaltsgerät, Verfahren zum Betrieb einer solchen Pumpenvorrichtung und wasserführendes Haushaltsgerät

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EP3360998A1 EP3360998A1 (de) 2018-08-15
EP3360998B1 true EP3360998B1 (de) 2022-01-12

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US (1) US20180220865A1 (pl)
EP (1) EP3360998B1 (pl)
KR (1) KR20180092878A (pl)
CN (1) CN108412743A (pl)
DE (1) DE102017202062C5 (pl)
PL (1) PL3360998T3 (pl)

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Publication number Priority date Publication date Assignee Title
AU2019332942B2 (en) * 2018-08-27 2025-08-14 Ecolab Usa Inc. System and technique for extracting particulate-containing liquid samples without filtration
CN111188163A (zh) * 2018-11-15 2020-05-22 青岛海尔洗衣机有限公司 一种衣物处理剂投放装置、洗衣机及其控制方法
CN117869263A (zh) * 2023-02-06 2024-04-12 西安艾博智动材料科技有限公司 一种基于pvcg驱动的蠕动泵结构

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US5635468A (en) 1993-05-19 1997-06-03 Kao Corporation Liquefying alkaline α-amylase, process for producing the same, and detergent composition containing the same
DE10114256A1 (de) 2001-03-22 2002-10-02 Henkel Kgaa Dosiersystem für Waschsubstanzen
KR20100027031A (ko) * 2008-08-28 2010-03-10 주식회사 대우일렉트로닉스 드럼세탁기의 세탁수 순환 장치 및 방법
DE102009046782A1 (de) * 2008-12-16 2010-06-17 BSH Bosch und Siemens Hausgeräte GmbH Wasserführendes Haushaltsgerät mit einer in zwei Betriebsarten steuerbaren Pumpe
PL3069648T3 (pl) * 2015-03-18 2018-06-29 Tp Reflex Group S.P.A. Urządzenie myjące dla gospodarstwa domowego, a zwłaszcza zmywarka do naczyń, zawierające urządzenie do dozowania środków myjących, i sposób jego działania

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EP3360998A1 (de) 2018-08-15
PL3360998T3 (pl) 2022-05-09
US20180220865A1 (en) 2018-08-09
DE102017202062B3 (de) 2018-04-26
CN108412743A (zh) 2018-08-17
KR20180092878A (ko) 2018-08-20
DE102017202062C5 (de) 2023-05-04

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